Automobile-tire casing.



PATENTED JUNE 9 C. L. HIGGINS.

AUTOMOBILE TIRE CASING.

APPLICATION FILED. APR. 6. 1906.

lions. The portions inwardly beyond the skived edges are then CHARLES LEANDER HTGGINS, OF MONTREAL, QUEBEU, UANA1)A.

AUTOMOBILE-TIRE CASING.-

Application filed April 6, 1906.

To all whom it may concern: I

Be it known that I, CnAnnEs LEANDER .llrccnvs, of the city of Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Automobile- Tire Casings; and I do hereby declare that the, following is a full, clear, and exact de scription ofthe same.

The invention may be said briefly to consist in first cementing to a sheet of-textile fabric equalin width to the tire to be constructed, a strip of leather With-skived side edges. Theskived edges are then coated with cement and a pair of strips of textile fabric, preferably frictioned, are then spread over the skived edgessuch strips bemg of sufficient width to extend in both directions beyond the said skived' edges. A line of stitching" is then runalong each of the last mentioned strips in position to unite the same to the inner edge of each skive'd portion, and a second line connects these strips to the outer of the strip extending folded over the line's'ofstitching and caused to adhere firmly to the surface over which. it

is folded. Soft uncured rubberis then spread in the usual way over the fabric surface thus presented and it is decreased in thicknesstowards the unskived ortion of the leather thus providing a sea joint and presenting a plane exterior rubber surface with the leather extending longitudinally through and countersunk or inlaid in the middle thereof. The tread 'isthen secured in place preferably by com aratively large headed lie whole is vulcanizedin.

rivets, and finally t theusual manner.

For full comprehension, however, of my invention reference must be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate the same parts and wherein Figure 1 is a transverse sectional view of a tire casing made according to my invention Fig. 2 is a detail sectional erspective view thereof; and Fig.3 is an en arged detail sectional view of the orti'on thereof contiguous to the tread, to w rich portion my invention has particular reference. Fi 4 is an enlarged. detail sectional view illustrating particularly the method of stitching the parts 3 to eth er.

The textile fabric I use is that known to Specification of Letters Patent.

edges.

edges of the said skived por-- Patented June 9, 1908.

Serial N0. 310,337.

the rubber trade as lrictioned stock, and it is cut to dimensions equaling the width and circumferential length of the usual outer- I most layer of the tire casing which it constitutes. It is to this outer layer, 1), that my invention relates and its object is to reinforceand provide a more durable casing.

A strip 0 of leather constituting an ,intertread and having its side edges skived, as at d, is cemented along the middle of the length b of frictioned stock, the skived edges being thencoated with cement and a pair of comparatively narrow lengths e of 'frictioned stock arespread longitudinally over such skived" edges and the portions'of the outer layer 1) contiguous to the same, while the width of these strips is preferably sufficient to provide material, f, to fold back upon the portions covering the said skived Before thus folding the narrow strips they are caused to adhere .to thesurfaces upon whichthey lie by first passing a roller over them and 'thenrunning lines of stitching g and 76 in positions tov pass through the skived edges near the top and bottom thereof.

The folding is then done and the roller again passed over the folded portion thereby presenting a uniform surface of frictioned stock to the outer coating of uncured rubber, and at the same time protecting the lines of stitching. The outer coating m .of soft uncured rubber is then surface of frictioned stock and diminwith the skived edges of the inter tread and the portions of the frictioned stock upon the latter. to the inter tread C and the layer 5 by riv- The outer tread s is then secured spread in the usual way over the exposed ets t and Such tread is preferably of a width to have its side edges extend slightly beyond the scarf-joint, and finally the whole is ,vul-

canized after which the casing is ready for use.

This invention is equally applicable to the construction of tires, and in casings or tires embodying my improvements the wintertread is ractically made an integral part of the who e and'aifords a means whereby the outer tread is rigidly secured in place, while the stitching is thoroughly protected.

What I claim is as follows 1- 1 In the manufacture of coverings for tire casings and the like, cementing a strip of leather with its side edges skived to a layer of frictioned stock, cementing'a pair of narrow strips of frictioned stock along such skiv'ed edges, coating the exposed surfaces of frictioned stock with uncured rubber, and finally vulcanizing the whole. v

2.- In the manufacture of coverings for tirecasings and the like, cementing anjntertread with its side edges skived to a layer of-fric tioned stock, cementing a pairof narrow strips of frictioned stock along such skived edges, stitching the said strips in place, folding a portion of each strip over the lines of stitching, coating the exposed surfaces of frictioned stock with uncured rubber, securing an outer tread u on the exterior of the intertread, and finaly vulcanizing the whole.

' 3. An outer wall ofa tire comprisin a layer of frictioned stock, a strip of leat 1er cemented to such layer along the middle thereof, stri s of frictioned stock extending along t e edges of such leathern strip and overlapping the portions contiguous thereto of the frictioned stock, lines of stitching connecting the said layer the intertread and last mentioned strips together, a coating of vulcanized rubber coverin the exposed outer surfaces of the frictloned stock, an outer tread, and means securing the latter upon the exterior of the intertread.

4. An outer Wall of a tire comprising a layer of frictioned stock, a strip of leather cemented to such layer along the middle thereof and havin its side edges skived, strips of frictione stock cemented to the skived edges of such leathern strip and overlapping the portions contiguous thereto of the frictioned stock, lines of stitching connecting the said layer the intertread' and last mentioned strips together, such lines of stitching extending along the inner edges of.

the ski-ved portions and adjacent to the outer edges thereof and such strips being folded over the said lines of stitching, a coating of uncuredrubber covering the exposed outer surfaces of the frictioned stock, an outer tread, and means securing the latter upon the exterior of the intertread.

5. An outer Wall of a tire comprising a layer of frictioned stock, a strip of leather cemented to such layer along the middle thereof, strips of frictioncd stock extending along the edges of such leathern strip and overlapping the portions contiguous thereto of the frictioned stock,lines of stitching connecting the said layer the intertread and last mentioned strips together, a coating of vulcanized rubber covering the exposed outer surfaces of the frietioned stock, an outer tread and means securing the latter uponthe exterior of the intertread.

In testimony whereof, I have signed my name tothis specification, in the presence of two subscribing witnesses CHARLES LEANDER HIGGINS.

Witnesses:

WILLIAM P. MoFEAT, FRED J. SEARS 

